Automatic oil burner



Aug' 2 1927' T. M. LAMBETH AUTOMATIC OIL BURNER Filed May 8, 1926 "lil" "l l nuenfoz Thomas M Lambeh Q l 33? v. Grammy' Patented Aug. 2, `1927.` i y, i'

` THoMAs M. LAMBETH, or SEATTLE, WASHINGTON.

'Application led May 8,

My inventionrelates to an improvement inv oil burners and has for` its' object they general simplification in arrangement and in adjustment of the various parts ofy the burner, and particularly with yrelation to the adjustment of'an oil orsteam valve relative ito the other and relative to a control means,

such as a pressureoperated piston.

,fr further object lies inthe simplification of the connections betweenthe various parts ywhereby the oil and steam valves caribe posi# tively and simultaneously controlled through a single membery connected to a controlmember.

- Othery objects, particularly such as relate to structural improvements, will'be found in a study n of the accompanying drawings, whereinmy invention is shown in a present preferredembodiment,and of this specification, ,and the' claims terminating the same,

- wherein the'features forming my invention r`r-from both the steam chamberQan n Figure 1 is a plan view of my burnerwith parts broken' away and shown inL section,

and'y withparts omitted to show the interior,y

` 31 of the valve.`

construction. y c y Figure 2 is a typical sectionftransversely kof` a'valve port, taken on thek line `f2,2 of Figure 1; and Figure 3 isa similar sectiony yTheburnerto which my invention ypertains is of the type employing steam or a mixture of lsteam and air to induce movement ofthe yoil" andto mix therewith. A suitable mix- 'ing device preferably forms partA of the kburner tip, v is particularly directed to the means whereby the relative amounts of oil and steam yare controlled, the mixing chamberand burner and inasmuch asymy invention tip have not been illustratedV herein. 'To Vcontrol the oil and steam, I employ chambers `at*41, enabling it tob'e engaged by a wrench land y2,respectively, made up after the fashiony yof "valve chests. Eachv of these chambers is provided with an inlet port and )an outletport, and as these are yidentical in 1keachchamber,a description of one will suffice for the other. For example,theoil chamber 1 is shown as having an aperture 10 threaded to receive an outlet pipe 11 and the aperture "lcommunicates with a port 12 inthe bottom 'of the chamber 1,y andpreferably triangular yin shape, as is best 'seen in Figure 1.

,y The inleticomprises merely a tappedhole 13 vin the cover 14 ofthe chamber, in which a pipey 15 is threaded. .'The 'outlet kipes 11 theoil `r`hold. the valves i in' open position.

means may be convenien AUTOMATIC oInBunNEBJ i926. serial No. 107,583.-

chamber `1 connect to the mixin chamber of the burner tip;` It will be obvious that the inlet pipe and outlet pipe in either or both chambers, might be reversed, that is, the pipe 11 might betheinlet and the pipe 15 might be'theoutlet of the chambers.

To control the flow Vof the respective fluids, y i

steamand oil, throughthe chambers, valves are provided'within these chambers andcooperate with the ports 12 therein. These valves are alike' in the two `chambers and comprise essentially a lat valve member 3k or 3 having ears 31 upstanding therefrom, and apertured to receive a stem 4 which may slide freely throughV the aperturesv in the ears. The stem 4 extendsthrough the chambers 1 and 2 and through the ears 31in the valves therein, and 'projects ybeyond the chambers for a purpose which will appear hereafter. Thusk the ysame stem 4 is connected to both' the oil and the steamvalves. The means of connection Vpreferably varies, one/of the valves, the oil valves for example,

lhavinga` split collar 32 clamping tightlyk uponthe stem and placed between the ears The stem 4 may be reduced,

as indicated at 43, iffdesired, in order to more definitely position the splitcollar 32 andyto 'i insure its hold on the stem.

The connection at the steam valve 3 is similar to that described, except that a split nuty 33 is employedin place ofthe split coll1 lar 32, but located between the'ears 31 of the valvek and connected as' by bolts 34 to be non- `rotative relative to the valve. The stem is threaded as shown at y42 whereby `upon rotation of thek stem/(the split 'nut' 33 being V 'non-rotative) the steam valve 3" can be adjusted lengthwise of the stem. "To enable krengagement of the'stem to turn it, one of its projecting yends may be squared as indicated or like device. `Rotation of the stem will not ,affect the oil valve 3, inasmuch as the'split collar 32 willpermit it to Vrotate relative to the valve 3, but will maintain'the valve3 at i one of the projectingends ofthe stemand as shown herein, comprise a yoke 44 'apertured to receive thestem 4 and'bearing upon a collar45, secured tothe stem, the yoke "44 being guided upon'twoorV more'guide boltsv "46 secured in a flange 51 of the main casting rtv wg f Y 1,637,576

5. By means of' this arrangement, the stem 4 may be rotated without disturbing the yoke 44. Between the yokev44 and a connecting bar 47, which mayr provide an outboard guide 48 for the stem, are positioned coinpression springs 49, which, bearing yupon the yoke 44, tend to movefthe stem 4 tothe right, as seen in` Figure l, and consequently to retain the valves in openposition. Adjustment of tension on the springs 49 may be obtained by adjusting nuts 40 on the ends oi t-he guide bolts 46. It will be obvious, of course, that anyfother suitable means tor obtaining the desired resultfmay beemployed, it'being ydesirable-that the spring tension means be connected as directly as possible to the projecting end of thestem 4,1tor it is anobj ect to simplify the construction -andto maintain the parts, sofa'r as is possible, associated directly with a single stem, which, by its movement, controls the position of the valves. i l Y In furtherance olthis object, the control means may be associatedy with the oppositely projected end of the stem. Preferablythese are automatic control-means, operable by variations inthe pressure of steam in the boiler which is heated by means of. the burner,ror by variations inthe throttle line from such a boiler.; Such automatic means can be arranged to oppose the springs 49, whereby when the steam pressure rises, the action of the pressure controlled automa-tic control Vmeans. tends to close the valvesand thus to cut downtlie heat otfthe iire; and-conversely, when the pressure drops the springs tend to overcome the Apressure control andtoopen lSuchy an automatic control isi shownr best infFigure'l, and as shown comprises a-piston 6secur`ed upon a reducedY end 64 of the stem 4,'and held in placeby a nut60., It is essential that the entire piston rotate upon rotation of the stem 4, in adjusting the valve 3', 'or that the stem be swiveledin the piston, as shown herein. VThis Vpiston is movablewith in a cylinder 61, secured by bolts 62, which likewise retain a cover 68, to a second flange .52 ofthe main casting 5. A steamvpressure pipe 65, secured in the cover 63, may be connected toa source of steam pressure as, for Vexample, with the boiler or with the steam line,xand in this vmanner variations in the steam pressure will "be communicated, through their action on the piston 6, to move the valves 3,'and 3. Y f AIt will be lobserved that the chambers l and 2 are formed inffseparate'd'boxes 54 and v55 respectively,rformed integral r with theV Vmain casting 5, and with covers 14 secured thereon by means of stud bolts 56 received in the main casting and receiving clamping f nuts 'Tto hold von the covers. By separating the two 'chambers l and 2it is possible. to employ packing glands'58 about the stem 4 and tohave access to each packing gland independently of the others for adjustment or renewal. lFurther, all parts of the burner areinN alignment along-the axis or' stem 4,

and all parts are directly connected to the samestem.' By simple rotation ot the stem, the relatieveV proportions of oil and steam can be varied, yet thisrrotation does not aiect the connection of any part save the valve intended to `be adjusted. Further, the valve to be adjusted may be either the steam valve, as

described herein, or the oilvalve.

VThat I claim as my invention is: l. lnY an automatic oil burner, 1nk combination, casings defining separated oil andy steam chambers, and a. control chamber, said oil and steam chambers each having inlet andr outlet ports, a valve in each of said "oily justment or' one only of said valves relative 'i to its port and independent of the other valve Y and said control element.

y2. In an oil burner, in combination, casings defining separated oil and steamchambers each having inlet and outlet ports, a .valvev in each .chamber co-operating vwith a porttherein to control the passage of oil or steam therethrough, a single continuous Vstem extending throughthe oil and steam chambers, said stem` beingconnected vtok one ot Vsaid valvesortree rotation, and being threaded vinthe other, and means operatively connected to said stem to shift the two valves simultaneously, and permitting adjustment otthe threaded valve relativefto its port and Yindependent of the other valve.

3. In lan oil burner, in combination, a base 4having formed Uthereon independent oily and steam chambers, each havingan inlet and :anl outlet port, a stem passing through both vchambers"and projecting atL opposite ends, a valve wit-hin eachY chamber operatively `connected to the st em and controlling the passage otiiuid through its respective chamber, a Vflange upstanding at one end otsaid Vbase and apertured to receive the-stem, par- Iallel guide boltsireceivedinY said `flange, a `yoke operatively connected to reci rocate 4with said stem, and guided in sai( guidei bolts, springs associated vwith said yoke.'y and tending to.` moveVV said stem ina direction to open/the valves, anfd control ,means associatedwith said stem and normally tending lto move the stem in the opposite directioirw 4, In' an oil burner, in combination, a'base having 'formed ythereon rseparated oil land o steam chambers,

each having an inlet and an outlet port, a stem passing through both chambers and projectlngat opposite ends, a valve Within each chamber operatively connected to the stem and controlling the assage of fluid through its respective cham er, a flange upst-anding at one end of said base and apertured to receive the stern, parallel guide bolts received in said lflange, a yoke apertured to receive said stem, and guided upon said guide bolts,aJ collar secured uponr said stem, said yoke ybearing thereon, compression springs between the outer ends of said bolts and said yoke, and tending toy tation, and control means swiveled upon the opposite end of said stem from the springs, and normally tending to move the stem and valves in opposition to the springs.

Signed at Seattle, King County, Wash-v ington. o

THOMAS M.k LAMBETH. 

